"John Smith" on wrote... | Use of the composite feature confuses me. I would like to do some | overlays, but just to get a feel for the syntax and options. So ? is how | would I possibly do this: | Basic overlay usage is in IM Examples, Layering Multiple images http://imagemagick.org/Usage/layers/#composite
And an explaination o fthe various Alpha Composition methods and other features is in http://imagemagick.org/Usage/compose/ Note tha composite can be done in quite a number of different ways. composite source destination -compose method output or convert destination source -compose method -composite output NOTE the order of input images. You also have -flatten -mosaic and -layers merge convert operators to compose multiple images onto a background canvas of the current backgroudn color See http://imagemagick.org/Usage/layers/#flatten Also you can merge a two sequences of images using -layers composite see http://imagemagick.org/Usage/anim_mods/#composite | Draw around the inside edge of a given sample image, | | 1) i should be able to adjust the transparency value | 2) for this example, some generic color, like #FFFFFF or #000000 | What do you mean by 'sample image'. I am guessing you have some shape as a mask. Drawing around the edge of a shape in a raster (array of pixels) image is actually quite difficult. The logical method is using -edge See http://imagemagick.org/Usage/transforms/#edge For a smoother clearer method (non-IM) you can look at the new example Edging Alturnative using a Raster to Vector Convertor http://imagemagick.org/Usage/transforms/#edge_vector This will appear in a few hours. | If I can adjust the thickness that would be excellent! :) | The -edge can be variable thickness, though it only expands into the 'white' or lighter area of the shaped mask image. | so, in principle the idea is: | | convert sample_image.png {over border around --inside-- edge of input | image @ some thickness @ some color @ some transparency %] | output_image.png | | thank you very very much for helping me understand this powerful program | and your time to ramp up my knowledge of some features. Have a very good | day. :-) | Anthony Thyssen ( System Programmer ) <[EMAIL PROTECTED]> ----------------------------------------------------------------------------- He decided the physicists were wrong. The universe was held together not by gravity, but by ifs. -- Alan Dean Foster, "Quozl" ----------------------------------------------------------------------------- Anthony's Home is his Castle http://www.cit.gu.edu.au/~anthony/ _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
